James Chatterton

饰：Himself - Resident Vet

Alan Woodward

饰：Himself - Head Keeper, Carnivores

Tim Rowlands

饰：Himself - Head Keeper, Giraffes

Steve Unwin

饰：Himself - Vet

Sarah Forsyth

饰：Herself - Zoo Curator

Chas Mackenzie

饰：Himself - Head Keeper

Helen Massey

饰：Herself - Senior Keeper

Tanya Curnow

饰：Herself - Vet Nurse

莎拉·兰卡夏尔

Sarah Lancashire

饰：Herself - Narrator

Karen Homer

饰：Herself - Senior Vet Nurse

Belinda Porter

饰：Herself - Senior Keeper

Clive Barwick

饰：Himself - Zoo Curator

Andy Lenihan

饰：Himself - Head Keeper, Primates

Niall Ormerod

饰：Himself - Specialist Keeper, Primates

简·霍洛克斯

Jane Horrocks

饰：Self - Narrator

康妮·胡克

Konnie Huq

饰：Self - Presenter

Daniel Holliday

Daniel Holliday

饰：Self - Deputy Head of Section

彼得·克特兹

Péter Kertész

饰：Self - Dental Surgeon

Lisa Doran

饰：Self - Assistant Curator